Saw this on buy.com:
http://www.buy.com/prod/apple-iphone-3g-16gb-never-locked-w-full-apple-warranty/q/loc/12435/210461450.html
Unfortunately, the unit's refurbed. And from all indications, you still have to sign-up for an AT&T plan anyway. Still any SIM is usable apparently, and updating won't brick the phone?
http://www.buy.com/prod/apple-iphone-3g-16gb-never-locked-w-full-apple-warranty/q/loc/12435/210461450.html
Unfortunately, the unit's refurbed. And from all indications, you still have to sign-up for an AT&T plan anyway. Still any SIM is usable apparently, and updating won't brick the phone?